/* roulang page: index */
:root {
  --primary: #1a3a6b;
  --primary-light: #2a5a9e;
  --primary-dark: #0f2440;
  --accent: #f5a623;
  --accent-light: #f8c154;
  --accent-dark: #d4891a;
  --bg: #f8f9fc;
  --bg-card: #ffffff;
  --bg-alt: #edf2f7;
  --text: #1a2332;
  --text-light: #5a6a7e;
  --text-white: #f0f4f8;
  --border: #dce2ed;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(26, 58, 107, 0.08);
  --shadow-hover: 0 12px 36px rgba(26, 58, 107, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
  --gap: 24px;
  --gap-lg: 48px;
  --max-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); font-size: 16px; line-height: 1.6; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; }
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gap); }
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-size: 2rem; font-weight: 700; color: var(--primary-dark); text-align: center; margin-bottom: 12px; }
.section-sub { font-size: 1.05rem; color: var(--text-light); text-align: center; max-width: 680px; margin: 0 auto 40px; line-height: 1.7; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.card { background: var(--bg-card); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--border); }
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: var(--transition); border: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26, 58, 107, 0.25); color: #fff; }
.btn-accent { background: var(--accent); color: var(--primary-dark); }
.btn-accent:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245, 166, 35, 0.3); color: var(--primary-dark); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.badge { display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: 0.8rem; font-weight: 600; background: var(--bg-alt); color: var(--primary); border: 1px solid var(--border); }
.badge-accent { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); }
.tag { display: inline-block; padding: 2px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 500; background: var(--bg-alt); color: var(--text-light); transition: var(--transition); cursor: default; }
.tag:hover { background: var(--border); }
/* Header / Nav */
.header-top { background: var(--primary-dark); padding: 8px 0; color: var(--text-white); font-size: 0.85rem; }
.header-top .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.header-top a { color: var(--text-white); opacity: 0.85; }
.header-top a:hover { opacity: 1; color: var(--accent); }
.header-main { background: var(--bg-card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header-main .container { display: flex; justify-content: space-between; align-items: center; height: 68px; }
.logo { font-size: 1.35rem; font-weight: 800; color: var(--primary-dark); letter-spacing: -0.5px; display: flex; align-items: center; gap: 10px; }
.logo i { color: var(--accent); font-size: 1.5rem; }
.logo span { color: var(--primary); }
.nav-channel { background: var(--bg-alt); border-bottom: 1px solid var(--border); }
.nav-channel .container { display: flex; align-items: center; gap: 4px; height: 48px; overflow-x: auto; scrollbar-width: none; }
.nav-channel .container::-webkit-scrollbar { display: none; }
.nav-channel a { padding: 8px 20px; border-radius: 50px; font-size: 0.9rem; font-weight: 500; color: var(--text-light); white-space: nowrap; transition: var(--transition); }
.nav-channel a:hover { color: var(--primary); background: rgba(26, 58, 107, 0.06); }
.nav-channel a.active { color: #fff; background: var(--primary); font-weight: 600; }
.nav-channel a.active:hover { color: #fff; background: var(--primary-light); }
.search-box { display: flex; align-items: center; gap: 6px; background: var(--bg); border: 1px solid var(--border); border-radius: 50px; padding: 4px 16px 4px 12px; }
.search-box input { background: transparent; border: none; padding: 6px 0; font-size: 0.85rem; color: var(--text); min-width: 160px; }
.search-box input::placeholder { color: var(--text-light); }
.search-box button { background: transparent; color: var(--text-light); cursor: pointer; font-size: 0.9rem; padding: 4px; }
.search-box button:hover { color: var(--primary); }
/* Hero */
.hero { position: relative; min-height: 520px; display: flex; align-items: center; background: var(--primary-dark); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.25; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,36,64,0.92) 0%, rgba(26,58,107,0.75) 100%); }
.hero .container { position: relative; z-index: 2; text-align: center; padding: 60px var(--gap); }
.hero h1 { font-size: 3rem; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 16px; letter-spacing: -1px; }
.hero h1 i { color: var(--accent); }
.hero p { font-size: 1.15rem; color: rgba(255,255,255,0.8); max-width: 640px; margin: 0 auto 32px; line-height: 1.7; }
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; justify-content: center; gap: 40px; margin-top: 40px; flex-wrap: wrap; }
.hero-stat { text-align: center; color: #fff; }
.hero-stat .num { font-size: 2rem; font-weight: 800; color: var(--accent); }
.hero-stat .label { font-size: 0.9rem; opacity: 0.75; margin-top: 4px; }
/* Feature cards */
.feature-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 16px; background: var(--bg-alt); color: var(--primary); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; color: var(--primary-dark); }
.feature-card p { font-size: 0.92rem; color: var(--text-light); line-height: 1.65; }
/* Guide entry */
.guide-entry { background: var(--primary-dark); color: #fff; border-radius: var(--radius-lg); padding: 48px 40px; position: relative; overflow: hidden; }
.guide-entry::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.12; }
.guide-entry .content { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.guide-entry h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
.guide-entry p { color: rgba(255,255,255,0.75); max-width: 520px; line-height: 1.7; }
/* News list */
.news-list { list-style: none; }
.news-list li { padding: 16px 0; border-bottom: 1px solid var(--border); display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.news-list li:last-child { border-bottom: none; }
.news-list .meta { font-size: 0.8rem; color: var(--text-light); white-space: nowrap; flex-shrink: 0; }
.news-list a { font-weight: 500; color: var(--text); display: block; line-height: 1.4; }
.news-list a:hover { color: var(--primary); }
.news-card { display: flex; gap: 20px; align-items: flex-start; }
.news-card img { width: 120px; height: 80px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.news-card h4 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.news-card h4 a { color: var(--text); }
.news-card h4 a:hover { color: var(--primary); }
.news-card p { font-size: 0.85rem; color: var(--text-light); line-height: 1.5; }
/* Process */
.process-steps { display: flex; justify-content: space-between; gap: var(--gap); counter-reset: step; flex-wrap: wrap; }
.process-step { flex: 1; min-width: 180px; text-align: center; position: relative; padding: 24px 16px; }
.process-step::before { counter-increment: step; content: "0" counter(step); position: absolute; top: -8px; left: 50%; transform: translateX(-50%); font-size: 3.5rem; font-weight: 800; color: rgba(26,58,107,0.06); line-height: 1; }
.process-step .icon { font-size: 2rem; color: var(--primary); margin-bottom: 12px; }
.process-step h4 { font-size: 1.05rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.process-step p { font-size: 0.85rem; color: var(--text-light); }
/* FAQ */
.faq-item { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq-question { display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 1rem; color: var(--primary-dark); user-select: none; }
.faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.85rem; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; padding-top: 0; color: var(--text-light); font-size: 0.92rem; line-height: 1.7; }
.faq-item.open .faq-answer { max-height: 300px; padding-top: 12px; }
/* CTA */
.cta-section { background: var(--primary); color: #fff; text-align: center; padding: 64px 0; }
.cta-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.cta-section p { color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 28px; }
.cta-section .btn-accent { font-size: 1.05rem; padding: 14px 40px; }
/* Footer */
.footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 48px 0 24px; }
.footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--gap); }
.footer-brand .logo { color: #fff; margin-bottom: 12px; }
.footer-brand .logo span { color: var(--accent); }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; max-width: 320px; }
.footer h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { color: rgba(255,255,255,0.6); font-size: 0.88rem; }
.footer ul a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 32px; padding-top: 20px; text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }
/* Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer .container { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 1.6rem; }
  .process-steps { flex-direction: column; gap: 16px; }
  .process-step { min-width: unset; }
  .guide-entry .content { flex-direction: column; text-align: center; }
  .guide-entry h2 { font-size: 1.5rem; }
  .footer .container { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { max-width: 100%; }
  .news-card { flex-direction: column; }
  .news-card img { width: 100%; height: 140px; }
  .search-box input { min-width: 100px; }
  .header-main .container { height: 56px; }
  .logo { font-size: 1.15rem; }
}
@media (max-width: 520px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
  .section-title { font-size: 1.5rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .news-list li { flex-direction: column; gap: 4px; }
  .news-list .meta { white-space: normal; }
  .header-top { font-size: 0.75rem; }
  .nav-channel a { padding: 6px 14px; font-size: 0.82rem; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
        --primary: #1a56db;
        --primary-dark: #0f3d9e;
        --primary-light: #e8effd;
        --accent: #f59e0b;
        --accent-dark: #d97706;
        --bg-body: #f8fafc;
        --bg-white: #ffffff;
        --bg-card: #ffffff;
        --bg-dark: #0f172a;
        --bg-dark2: #1e293b;
        --text-primary: #0f172a;
        --text-secondary: #475569;
        --text-muted: #94a3b8;
        --text-white: #f1f5f9;
        --border: #e2e8f0;
        --border-light: #f1f5f9;
        --radius-sm: 6px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
        --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
        --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        --container-w: 1200px;
        --header-h: 72px;
        --gap: 24px;
        --gap-lg: 48px;
    }

    /* ===== 基础 Reset ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-primary);
        background: var(--bg-body);
    }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-dark); }
    a:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
    button, input, textarea, select { font-family: inherit; font-size: 1rem; border: none; outline: none; transition: var(--transition); }
    button { cursor: pointer; background: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text-primary); font-weight: 700; }
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }
    .container { max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }

    /* ===== 头部 / 导航 ===== */
    .header {
        position: sticky; top: 0; z-index: 1000;
        background: var(--bg-white);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        height: var(--header-h);
    }
    .header-inner {
        display: flex; align-items: center; justify-content: space-between;
        height: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 20px;
    }
    .logo {
        display: flex; align-items: center; gap: 8px;
        font-size: 1.35rem; font-weight: 800; color: var(--text-primary);
        letter-spacing: -0.3px;
    }
    .logo i { color: var(--primary); font-size: 1.4rem; }
    .logo span { color: var(--primary); }
    .nav-main { display: flex; align-items: center; gap: 4px; }
    .nav-main a {
        padding: 8px 18px; border-radius: var(--radius-sm);
        font-size: 0.92rem; font-weight: 500; color: var(--text-secondary);
        transition: var(--transition); position: relative;
    }
    .nav-main a:hover { color: var(--primary); background: var(--primary-light); }
    .nav-main a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
    .nav-main a.active::after {
        content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
        width: 20px; height: 3px; background: var(--primary); border-radius: 3px;
    }
    .nav-cta {
        background: var(--primary); color: #fff !important; padding: 8px 22px !important;
        border-radius: 50px !important; font-weight: 600 !important;
    }
    .nav-cta:hover { background: var(--primary-dark) !important; color: #fff !important; transform: translateY(-1px); box-shadow: var(--shadow-md); }
    .menu-toggle { display: none; font-size: 1.5rem; color: var(--text-primary); padding: 6px; border-radius: var(--radius-sm); background: none; }
    .menu-toggle:hover { background: var(--primary-light); }

    /* ===== 移动端导航 ===== */
    @media (max-width: 820px) {
        .menu-toggle { display: block; }
        .nav-main { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--bg-white); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); flex-direction: column; padding: 12px 20px 20px; gap: 6px; z-index: 999; }
        .nav-main.open { display: flex; }
        .nav-main a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
        .nav-main a.active::after { display: none; }
        .nav-cta { text-align: center; margin-top: 6px; }
    }

    /* ===== 文章详情页专用 ===== */
    .article-banner {
        position: relative; padding: 60px 0 40px; background: var(--bg-dark);
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover; background-position: center; background-blend-mode: overlay;
        color: var(--text-white); overflow: hidden;
    }
    .article-banner::before {
        content: ''; position: absolute; inset: 0;
        background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(26,86,219,0.6) 100%);
    }
    .article-banner .container { position: relative; z-index: 2; }
    .article-breadcrumb {
        display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 18px; flex-wrap: wrap;
    }
    .article-breadcrumb a { color: rgba(255,255,255,0.7); }
    .article-breadcrumb a:hover { color: #fff; }
    .article-breadcrumb span { color: rgba(255,255,255,0.5); }
    .article-category-badge {
        display: inline-block; padding: 4px 16px; border-radius: 50px;
        background: var(--accent); color: #fff; font-size: 0.78rem; font-weight: 600;
        letter-spacing: 0.3px; margin-bottom: 14px;
    }
    .article-banner h1 {
        font-size: 2.4rem; color: #fff; max-width: 840px; line-height: 1.3; margin-bottom: 16px;
    }
    .article-meta {
        display: flex; flex-wrap: wrap; gap: 18px; align-items: center;
        font-size: 0.88rem; color: rgba(255,255,255,0.75);
    }
    .article-meta i { margin-right: 5px; opacity: 0.8; }
    .article-meta span { display: inline-flex; align-items: center; }

    /* ===== 正文区域 ===== */
    .article-main { padding: 48px 0 64px; }
    .article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; }
    .article-body {
        background: var(--bg-white); border-radius: var(--radius-md); padding: 40px 44px;
        box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    }
    .article-body .content { font-size: 1.05rem; line-height: 1.85; color: var(--text-primary); }
    .article-body .content p { margin-bottom: 1.25em; }
    .article-body .content h2 { font-size: 1.5rem; margin-top: 2em; margin-bottom: 0.8em; padding-bottom: 0.4em; border-bottom: 2px solid var(--primary-light); }
    .article-body .content h3 { font-size: 1.2rem; margin-top: 1.6em; margin-bottom: 0.6em; }
    .article-body .content ul, .article-body .content ol { margin-bottom: 1.25em; padding-left: 1.6em; }
    .article-body .content li { margin-bottom: 0.5em; list-style: disc; }
    .article-body .content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
    .article-body .content a:hover { color: var(--primary-dark); }
    .article-body .content blockquote {
        border-left: 4px solid var(--primary); padding: 14px 20px; margin: 1.5em 0;
        background: var(--primary-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-secondary); font-style: italic;
    }
    .article-body .content img { margin: 1.5em auto; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
    .article-body .content pre {
        background: var(--bg-dark); color: #e2e8f0; padding: 20px 24px; border-radius: var(--radius-md);
        overflow-x: auto; font-size: 0.9rem; line-height: 1.6; margin: 1.5em 0;
    }
    .article-body .content code { font-family: 'JetBrains Mono', monospace; font-size: 0.88em; }
    .article-body .content table { width: 100%; border-collapse: collapse; margin: 1.5em 0; }
    .article-body .content th, .article-body .content td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
    .article-body .content th { background: var(--primary-light); font-weight: 600; }
    .article-body .content hr { margin: 2em 0; border: none; border-top: 2px solid var(--border); }

    .article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
    .article-tags a {
        display: inline-block; padding: 4px 16px; border-radius: 50px;
        background: var(--primary-light); color: var(--primary); font-size: 0.82rem; font-weight: 500;
        transition: var(--transition);
    }
    .article-tags a:hover { background: var(--primary); color: #fff; }

    /* ===== 侧栏 ===== */
    .article-sidebar { display: flex; flex-direction: column; gap: 28px; }
    .sidebar-card {
        background: var(--bg-white); border-radius: var(--radius-md); padding: 24px 22px;
        box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    }
    .sidebar-card h3 { font-size: 1.05rem; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
    .sidebar-card h3 i { color: var(--primary); }
    .sidebar-list { display: flex; flex-direction: column; gap: 10px; }
    .sidebar-list a {
        padding: 8px 12px; border-radius: var(--radius-sm); background: var(--bg-body);
        font-size: 0.9rem; color: var(--text-secondary); transition: var(--transition);
        display: flex; align-items: center; gap: 8px;
    }
    .sidebar-list a:hover { background: var(--primary-light); color: var(--primary); }
    .sidebar-list a i { font-size: 0.7rem; color: var(--text-muted); }
    .sidebar-cta {
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: #fff; border-radius: var(--radius-md); padding: 28px 22px; text-align: center;
    }
    .sidebar-cta h3 { color: #fff; font-size: 1.1rem; margin-bottom: 8px; }
    .sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.88rem; margin-bottom: 18px; }
    .sidebar-cta .btn { background: var(--accent); color: #fff; padding: 10px 28px; border-radius: 50px; font-weight: 600; display: inline-block; }
    .sidebar-cta .btn:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }

    /* ===== 相关文章 ===== */
    .related-section { padding: 48px 0 64px; background: var(--bg-body); }
    .related-section h2 { text-align: center; margin-bottom: 36px; font-size: 1.6rem; }
    .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .related-card {
        background: var(--bg-white); border-radius: var(--radius-md); overflow: hidden;
        box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition);
    }
    .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .related-card img { width: 100%; height: 180px; object-fit: cover; }
    .related-card-body { padding: 18px 20px 20px; }
    .related-card-body h4 { font-size: 1rem; margin-bottom: 8px; }
    .related-card-body h4 a { color: var(--text-primary); }
    .related-card-body h4 a:hover { color: var(--primary); }
    .related-card-body p { font-size: 0.88rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .related-card-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 10px; display: flex; align-items: center; gap: 12px; }

    /* ===== 内容未找到 ===== */
    .not-found-box { text-align: center; padding: 60px 20px; }
    .not-found-box i { font-size: 3.5rem; color: var(--text-muted); margin-bottom: 20px; }
    .not-found-box h2 { font-size: 1.6rem; margin-bottom: 12px; }
    .not-found-box p { color: var(--text-secondary); margin-bottom: 24px; }
    .not-found-box .btn { display: inline-block; padding: 10px 32px; background: var(--primary); color: #fff; border-radius: 50px; font-weight: 600; }
    .not-found-box .btn:hover { background: var(--primary-dark); }

    /* ===== 通用按钮 ===== */
    .btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; transition: var(--transition); border: none; }
    .btn-primary { background: var(--primary); color: #fff; }
    .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); color: #fff; }
    .btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
    .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
    .btn-accent { background: var(--accent); color: #fff; }
    .btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); color: #fff; }

    /* ===== 分隔线 ===== */
    .divider { height: 1px; background: var(--border); margin: 0; border: none; }

    /* ===== 页脚（复用首页） ===== */
    .footer {
        background: var(--bg-dark); color: var(--text-white); padding: 56px 0 0;
    }
    .footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; }
    .footer .logo { color: #fff; font-size: 1.25rem; margin-bottom: 14px; }
    .footer .logo i { color: var(--accent); }
    .footer .logo span { color: var(--accent); }
    .footer-brand p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; max-width: 340px; }
    .footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 18px; font-weight: 600; }
    .footer ul li { margin-bottom: 10px; }
    .footer ul li a { color: var(--text-muted); font-size: 0.88rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
    .footer ul li a:hover { color: #fff; padding-left: 4px; }
    .footer ul li a i { font-size: 0.8rem; color: var(--accent); width: 16px; }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.08); margin-top: 40px; padding: 20px 0;
    }
    .footer-bottom .container { display: flex; justify-content: space-between; align-items: center; grid-template-columns: unset; }
    .footer-bottom p { font-size: 0.82rem; color: var(--text-muted); }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .footer .container { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        .article-banner h1 { font-size: 1.6rem; }
        .article-body { padding: 24px 18px; }
        .article-sidebar { grid-template-columns: 1fr; }
        .related-grid { grid-template-columns: 1fr; }
        .footer .container { grid-template-columns: 1fr; gap: 24px; }
        .footer-bottom .container { flex-direction: column; gap: 8px; text-align: center; }
    }
    @media (max-width: 520px) {
        .article-banner { padding: 36px 0 28px; }
        .article-banner h1 { font-size: 1.3rem; }
        .article-meta { flex-direction: column; gap: 6px; font-size: 0.82rem; }
        .article-body { padding: 18px 14px; }
        .article-body .content { font-size: 0.95rem; }
        .article-layout { gap: 20px; }
        .sidebar-card { padding: 18px 16px; }
        .btn { padding: 8px 20px; font-size: 0.88rem; }
    }

    /* ===== 动画 ===== */
    @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
    .animate-fade-up { animation: fadeUp 0.6s ease-out both; }
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0a66c2;
            --primary-dark: #004182;
            --primary-light: #e6f0fa;
            --primary-gradient: linear-gradient(135deg, #0a66c2 0%, #004182 100%);
            --accent: #f0a500;
            --accent-dark: #cc8800;
            --accent-light: #fff8e0;
            --bg: #ffffff;
            --bg-alt: #f6f9fc;
            --bg-dark: #0b1a2e;
            --text: #1e293b;
            --text-light: #5e6f8d;
            --text-white: #ffffff;
            --border: #dce3ed;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-xl: 20px;
            --shadow: 0 2px 8px rgba(10, 102, 194, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(10, 102, 194, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 14px 40px rgba(10, 102, 194, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container: 1200px;
            --header-h: 72px;
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            color: var(--text-light);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.2rem;
            }
        }

        /* ===== Header / Navigation (Magazine Style) ===== */
        .site-header {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }
        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Brand row */
        .header-brand {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 16px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .site-logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .site-logo span {
            color: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 14px;
            height: 40px;
            min-width: 200px;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10, 102, 194, 0.1);
        }
        .header-search input {
            background: transparent;
            border: none;
            padding: 0 8px;
            flex: 1;
            font-size: 0.9rem;
            color: var(--text);
            min-width: 0;
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search button {
            background: transparent;
            color: var(--text-light);
            cursor: pointer;
            font-size: 0.95rem;
            padding: 4px;
            transition: var(--transition);
        }
        .header-search button:hover {
            color: var(--primary);
        }
        .header-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            padding: 8px 20px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: none;
        }
        .header-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        /* Channel row */
        .header-channels {
            border-top: 1px solid var(--border);
            background: var(--bg);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .header-channels::-webkit-scrollbar {
            display: none;
        }
        .channel-list {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0;
            min-width: max-content;
        }
        .channel-list a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 40px;
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .channel-list a i {
            font-size: 0.8rem;
            opacity: 0.6;
        }
        .channel-list a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .channel-list a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .channel-list a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px;
            border: none;
        }
        @media (max-width: 768px) {
            .header-search {
                min-width: 0;
                flex: 1;
                max-width: 160px;
            }
            .header-btn span {
                display: none;
            }
            .header-btn {
                padding: 8px 12px;
            }
            .header-btn i {
                margin: 0;
            }
            .mobile-toggle {
                display: block;
            }
            .header-channels {
                overflow-x: auto;
            }
            .channel-list a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .header-brand {
                gap: 8px;
            }
            .site-logo {
                font-size: 1.2rem;
            }
            .site-logo i {
                font-size: 1.2rem;
            }
            .header-search {
                max-width: 120px;
                height: 36px;
                padding: 0 10px;
            }
            .header-search input {
                font-size: 0.8rem;
            }
            .header-btn {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
            .channel-list a {
                padding: 4px 10px;
                font-size: 0.8rem;
            }
        }

        /* ===== Hero / Banner (Category) ===== */
        .category-hero {
            position: relative;
            padding: 80px 0 70px;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            color: var(--text-white);
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 16px;
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .category-hero p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.2rem;
            max-width: 720px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .category-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 8px;
        }
        .category-hero .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .category-hero .hero-tags span i {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 60px 0 50px;
                min-height: 260px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .category-hero .hero-tags span {
                font-size: 0.8rem;
                padding: 4px 14px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
        }

        /* ===== Section Shared ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.05rem;
        }
        .section-header .subtitle-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-item {
            background: var(--bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-item .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-alt);
        }
        .card-item .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-item .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--text);
        }
        .card-item .card-body p {
            font-size: 0.95rem;
            color: var(--text-light);
            flex: 1;
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .card-item .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }
        .card-item .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .card-item .card-tags .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
        }
        .card-item .card-tags .tag.accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .card-item .card-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .card-item .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        @media (max-width: 992px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 600px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .card-item .card-img {
                height: 180px;
            }
            .card-item .card-body {
                padding: 16px 18px 18px;
            }
        }

        /* ===== Intro / Description ===== */
        .intro-block {
            display: flex;
            align-items: center;
            gap: 50px;
            background: var(--bg);
            border-radius: var(--radius-xl);
            padding: 48px 50px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .intro-block .intro-text {
            flex: 1;
        }
        .intro-block .intro-text h2 {
            margin-bottom: 16px;
        }
        .intro-block .intro-text p {
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .intro-block .intro-icon {
            flex-shrink: 0;
            width: 120px;
            height: 120px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .intro-block {
                flex-direction: column;
                padding: 30px 24px;
                gap: 24px;
                text-align: center;
            }
            .intro-block .intro-icon {
                width: 80px;
                height: 80px;
                font-size: 2rem;
            }
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(10, 102, 194, 0.25);
        }
        .step-card .step-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 16px;
            margin-top: 8px;
        }
        .step-card h4 {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .step-card {
                padding: 24px 18px 20px;
            }
        }

        /* ===== Article List ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .article-row {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 18px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-row:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateX(4px);
        }
        .article-row .ar-num {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--primary-light);
            min-width: 40px;
        }
        .article-row .ar-content {
            flex: 1;
        }
        .article-row .ar-content h4 {
            font-size: 1.05rem;
            margin-bottom: 4px;
            color: var(--text);
        }
        .article-row .ar-content p {
            font-size: 0.88rem;
            color: var(--text-light);
        }
        .article-row .ar-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .article-row .ar-meta i {
            margin-right: 4px;
        }
        .article-row .ar-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .article-row .ar-link:hover {
            gap: 8px;
        }
        @media (max-width: 768px) {
            .article-row {
                flex-wrap: wrap;
                padding: 14px 18px;
                gap: 12px;
            }
            .article-row .ar-num {
                min-width: 30px;
                font-size: 1rem;
            }
            .article-row .ar-meta {
                width: 100%;
                gap: 12px;
                font-size: 0.78rem;
            }
            .article-row .ar-link {
                font-size: 0.85rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
            transition: var(--transition);
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary-gradient);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .cta-block h2 {
            color: var(--text-white);
            font-size: 2rem;
            margin-bottom: 14px;
            position: relative;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
            position: relative;
        }
        .cta-block .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            position: relative;
        }
        .cta-block .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .cta-block .cta-btn.primary {
            background: var(--accent);
            color: var(--text);
        }
        .cta-block .cta-btn.primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 165, 0, 0.35);
        }
        .cta-block .cta-btn.outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .cta-block .cta-btn.outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 1.6rem;
            }
            .cta-block p {
                font-size: 1rem;
            }
            .cta-block .cta-btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* ===== Footer (shared) ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
        }
        .footer .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer .logo i {
            color: var(--accent);
        }
        .footer .logo span {
            color: var(--accent);
        }
        .footer p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer ul li a i {
            width: 16px;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding: 20px 0;
        }
        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            grid-template-columns: unset;
            gap: 16px;
        }
        .footer-bottom p {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.85rem;
        }
        @media (max-width: 992px) {
            .footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 600px) {
            .footer {
                padding: 40px 0 0;
            }
            .footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer .footer-brand {
                grid-column: 1;
            }
            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Misc Utilities ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .badge-pill.accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 400px) {
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-hero p {
                font-size: 0.85rem;
            }
            .card-item .card-body h3 {
                font-size: 1rem;
            }
            .card-item .card-body p {
                font-size: 0.88rem;
            }
            .step-card h4 {
                font-size: 1rem;
            }
            .cta-block h2 {
                font-size: 1.3rem;
            }
            .cta-block .cta-btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
        }